Discovered in 1995 by W. Suijker and Y. Suijker-Jansen who also found another location 1997 with F. and M. Vermeulen; no other locations have been found since. Described by W. Suijker and G. Collier in 2006. Unusually low number of chromosomes with a rather large pair of arcocentric elements (shown with arrows). Uneven sex ratios are common, not difficult otherwise. From cool acidic soft "black" water similar to African killifish blackwater biotopes for example, Diopteronspecies.